桂林市柑橘园植株和土壤铜含量分析  

The Copper Contents of Soils and Plants in Guilin's Citrus Orchards

作　　者：钟莉传[1] 闵华[1] 

机构地区：[1]广西农业职业技术学院,广西南宁530007

出　　处：《宁夏农林科技》2011年第2期73-74,68,共3页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：广西农业职业技术学院专业带头人科研基金(桂农职院发[2011]13号)

摘　　要：了解桂林市柑橘园土壤与植株的铜含量现状,为含铜肥料、农药的使用提供科学依据,对桂林市柑橘园不同品种、不同树龄的植株叶片、根系和园区耕地表层土壤进行了铜含量分析。结果表明:桂林市柑橘园植株叶片铜含量极不均匀,介于3.4～72.2 mg/kg,平均7.89 mg/kg,且含量与树龄呈正相关;根系铜含量较丰富,平均19.81 mg/kg,无缺铜现象,也不存在过量现象,含量也与树龄呈正相关;土壤有效铜含量范围在0.80～22.41 mg/kg,平均6.37 mg/kg,为高含量水平;同时发现耕作层土壤有效铜含量与土壤成土母质、土壤pH值、土壤有机质含量有关;土壤有效铜与植株铜含量呈显著正相关关系。To understand the copper contents of soils and plants in the Citrus Park,and provide a scientific basis for the application of copper fertilizers and pesticides,the study carried out copper content analysis to the leaves and roots of different ages and surface soils of the citrus orchards in Guilin.The results showed that the copper contents of leaves are highly uneven,ranging from 3.4 to 72.2 mg/kg with an average of 7.89,and the contents are positively correlated with ages.And that of roots,without excess as well as shortage,is relatively rich with an average of 19.81 mg/kg,and is positively correlated with their ages.The effective copper contents of the soils are at high levels ranging between 0.80 and 22.41 mg/kg with an average of 6.37,and is significantly positively correlated with that of the plants.Also found that the effective copper contents of the plow layer soils are significantly positively correlated with their parent materials,the pH values and organic matter content of the soils;Soil and plant copper content of copper was significantly positively correlated.

关 键 词：桂林市 柑橘园 土壤 植株 铜含量 

分 类 号：S666[农业科学—果树学]